📒 the face of a clock or watch, or a similar control on a machine, piece of equipment or vehicle that shows a measurement of time, amount, speed, temperature, etc.
📒 the round control on a radio, cooker, etc. that you turn in order to change something, for example to choose a particular station or to choose a particular temperature
📒 the round part on some older phones, with holes for the fingers, that you move around to call a particular number